NCT06294951

Brief Summary

The goal of this observational study is to investigate the relationship between functional magnetic resonance imaging (fMRI) findings of the brain and symptom presentation in patients with bladder pain syndrome (BPS). The main questions it aims to answer are:

  1. 1.To explore the distribution characteristics of fMRI imaging and possible target lesions in the patient population.
  2. 2.To provide appropriate clues and evidence for etiological exploration and therapeutic targeting of BPS.

Trial Health

77
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
120

participants targeted

Target at P50-P75 for all trials

Timeline
7mo left

Started Mar 2024

Typical duration for all trials

Geographic Reach
1 country

1 active site

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Progress81%
Mar 2024Dec 2026

First Submitted

Initial submission to the registry

February 19, 2024

Completed
11 days until next milestone

Study Start

First participant enrolled

March 1, 2024

Completed
5 days until next milestone

First Posted

Study publicly available on registry

March 6, 2024

Completed
2.8 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 31, 2026

Expected
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2026

Last Updated

March 6, 2024

Status Verified

March 1, 2024

Enrollment Period

2.8 years

First QC Date

February 19, 2024

Last Update Submit

March 5, 2024

Conditions

Outcome Measures

Primary Outcomes (1)

  • fMRI findings

    The fMRI is acquired using a Siemens 3.0T MRI scanner. BOLD functional images are scanned using an echo planar imaging (EPI) sequence. The scanning parameters are: TR=2s, matrix size of 64\*64, number of layers=30, layer thickness=3.75\*3.75\*4.5mm, and bottom-up interval scanning. A total of 540 whole brain functional images are acquired. The relevant data acquired from fMRI should undergo the following pre-processing before generating findings: (1) data format conversion; (2) temporal layer correction; (3) head movement correction; (4) normalization; (5) smoothing

    1 day (fMRI is performed once upon the recruitment of the study subject.)

Study Arms (2)

BPS group

Patients with BPS (subject to current diagnostic criteria and clinical guidelines).

Diagnostic Test: fMRI

Control group

Patients with symptoms of bladder pain and evidence of current urinary tract infection.

Diagnostic Test: fMRI

Interventions

fMRIDIAGNOSTIC_TEST

The fMRI is acquired using a Siemens 3.0T MRI scanner. BOLD functional images are scanned using an echo planar imaging (EPI) sequence. The scanning parameters are: TR=2s, matrix size of 64\*64, number of layers=30, layer thickness=3.75\*3.75\*4.5mm, and bottom-up interval scanning. A total of 540 whole brain functional images are acquired.

BPS groupControl group

Eligibility Criteria

Age18 Years+
Sexfemale
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

The groups or cohorts will be selected from Urology clinic of Renji Hospital, Shanghai Jiao Tong University School of Medicine

You may qualify if:

  • Be 18 years of age or older and female;

You may not qualify if:

  • Persistence of symptoms for more than 6 months;
  • Visual analogue scale (VAS) of pain ≥ 4;
  • O'Leary-Sant Interstitial Cystitis questionnaire (IC-Q) score of 12 or more, with pain and nocturia domain scores \>2;
  • Pelvic Pain and Urgency/Frequency Patient Symptom Scale (PUF) \>13;
  • No history of cystoscopy within 2 years.
  • With proliferative cystoplasty or previous surgery or any pharmacological and non-pharmacological treatment for BPS;
  • Pregnant or lactating women;
  • Contraindications to MRI;
  • Average urine output less than 40 ml or more than 400 ml;
  • Haematuria (more than 1+ in urine dipstick test);
  • Evidence of current urinary tract infection at the time of recruitment;
  • Tuberculosis of the genitourinary system or cancer of the bladder or uroepithelial cancer;
  • Recurrent urinary tract infection;
  • History of hysterectomy, mid-urethral sling, pelvic organ prolapse repair, vaginal delivery or caesarean section, prostate surgery or treatment within 6 months;
  • History of neurological disease such as cerebral infarction, multiple sclerosis, or Parkinson's disease;
  • +17 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Renji Hospital, Shanghai Jiao Tong University School of Medicine

Shanghai, Shanghai Municipality, 200127, China

RECRUITING

MeSH Terms

Conditions

Cystitis, Interstitial

Interventions

Magnetic Resonance Imaging

Condition Hierarchy (Ancestors)

CystitisUrinary Bladder DiseasesUrologic DiseasesFemale Urogenital DiseasesFemale Urogenital Diseases and Pregnancy ComplicationsUrogenital DiseasesMale Urogenital Diseases

Intervention Hierarchy (Ancestors)

TomographyDiagnostic ImagingDiagnostic Techniques and ProceduresDiagnosis

Study Officials

  • Zhebin Du, Dr.

    RenJi Hospital

    PRINCIPAL INVESTIGATOR
  • Yinghui Fan, Dr.

    RenJi Hospital

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Study Design

Study Type
observational
Observational Model
CASE CONTROL
Time Perspective
OTHER
Target Duration
7 Days
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Attending Physician

Study Record Dates

First Submitted

February 19, 2024

First Posted

March 6, 2024

Study Start

March 1, 2024

Primary Completion (Estimated)

December 31, 2026

Study Completion (Estimated)

December 31, 2026

Last Updated

March 6, 2024

Record last verified: 2024-03

Locations